1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1992 12 07 C10260436 Released J. JoshiWP 3948-a Page 1 of 2 TAPE, POLYAMIDE - BRAIDED WSD-M6H32-B1. SCOPEThe material defined by this specification is a braided polyamide tape.2. APPLICATIONThis s p
2、ecification was released originally for material used as a ruchingtape in vehicle seat cover assemblies.3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStand ard Q-101. A mutually acceptable Control Plan as describedtherein is required for mate
3、rial/source approval. Appropriatestatist ical tools must be used to analyze process/product data sothat variation in the final product is continuously reduced.3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Company, at its option, may conduct infrared and/ortherma l analysis of mate
4、rial/parts supplied to this specification.The IR spectra and ther mogram established for initial approval shallconst itute the reference standard and shall be kept on file at thedesignated material laboratory. All samples sha ll produce IR spectraand thermogram that cor respond to the reference stan
5、dard when testedunder the same conditions.3.3 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are based on ma terial conditioned ina control led atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing and tested under thesame conditions unles
6、s otherwise specified.3.4 WIDTH 2.0 +/- 0.2 mm(ASTM D 580)3.5 WEIGHT, min 3.0 g/10 m(FLTM BN 106-01) 3.6. CONSTRUCTION, min 13 x 2 - ply braidyarns per widthENGINEERING MATERIAL SPECIFICATIONWSD-M6H32-BWP 3948-b Page 2 of 2 3.7 COMPOSITION 100 % Polyamide(ASTM D 276)3.8 YARN SIZE AND TYPE 10 tex f51
7、ASTM D 1244)3.9 BREAKING STRENGTH, min 100 N(ASTM D 1682, Test Speed 300 mm/minuteSpecimen length 200 mm)3.10 ELONGATION AT BREAK, max 50 %(As per section 3.9)Calculate elongation from initial jaw separation (L1) and jawseparation at break (L2), % elongation = (L2 - L1)/L1 x 1003.10 SUPPLIERS RESPO
8、NSIBILITYAll materials supplied to this specification must be equivalent inal l characteristics to the material upon which approval wasoriginally granted.Pri or to making any change in the properties, composition,const ruction, colour, processing or labelling of the materialorig inally approved unde
9、r this specification, whether or not suchchange s affect the materials ability to meet the specificationrequir ements, the Supplier shall notify Purchasing, Toxicology andthe affected Materials Engineering activity of the proposed changesand obtain the written approval of the Materials Engineeringac
10、tivity. Test data, t est samples and a new code identification areto be submitted with the request.Substance restrictions imposed by law, regulations or Ford, apply tothe materials addressed by this document. The restrictions aredefined in Engineering Material Specification WSS-M99P9999-A1.4. APPROV
11、AL OF MATERIALSMat erials defined by this specification must have prior approval by theresponsible Materials Engineeri ng activity. Suppliers desiring approval ofthe ir materials shall first obtain an expression of interest from theaffec ted Purchasing, Design and Materials Engineering activity. Upo
12、nrequest, the Supplier shall submit to the affected Materials Engineeringactivity a completed copy of their laboratory test reports, signed by aqualified and authorised representative of the test faci lity, demonstratingful l compliance with all the requirements of this specification (testresults, n
13、ot nominal values), the material designation a nd code number, andtes t specimens for Ford evaluation. Fords engineering approval of amateri al will be based on its performance to this specification and on anassessment of suitability for intended processes and/or applications. Uponapprov al, the material will be added to the Engineering Material ApprovedSource List.
